/**
* @author AlbertDarren
* @contact 2563491540@qq.com
*/
#include <cstdio>

using namespace std;
void swap(int* a, int* b)
{
    int temp=*a;
    *a=*b;
    *b=temp;
}
int main_60()
{
    int a,b;
    scanf("%d%d",&a,&b);
    swap(&a,&b);
    printf("%d %d\n",a,b);
	return 0;
}
